APA-čujuhus (7. p.)

Rai G.D. (2020). Non-Conventional Energy Sources (6th.). Khanna Publishers.

Chicago-čujuhus (17. p.)

Rai G.D. Non-Conventional Energy Sources. 6th. Delhi: Khanna Publishers, 2020.

MLA-čujuhus (9. p.)

Rai G.D. Non-Conventional Energy Sources. 6th. Khanna Publishers, 2020.

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